908397745920 has 1152 divisors, whose sum is σ = 3916317081600. Its totient is φ = 194761801728.

The previous prime is 908397745867. The next prime is 908397745921. The reversal of 908397745920 is 29547793809.

908397745920 is a `hidden beast` number, since 9 + 0 + 8 + 39 + 7 + 7 + 4 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908397745921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 491822437 + ... + 491824283.

It is an arithmetic number, because the mean of its divisors is an integer number (3399580800).

Almost surely, 2^908397745920 is an apocalyptic number.

908397745920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 908397745920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958158540800).

908397745920 is an abundant number, since it is smaller than the sum of its proper divisors (3007919335680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

908397745920 is a wasteful number, since it uses less digits than its factorization.

908397745920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 908397745920 in words is "nine hundred eight billion, three hundred ninety-seven million, seven hundred forty-five thousand, nine hundred twenty".